Features: USB Ports&Cigarette Lighter Splitter:The 4.2A USB power charger simultaneously connect charging. It is suitable most usb devices great for charging your phones tablet android devices pda gps and other accessories.ect. Humanized Design: The surface of the product is matte and has a dust cover which is not easy to fall. Designed with on/off power button for energy-saving and devices protection. 2 in 1 Cigarette Socket Panel: This 12V Outlet Socket Panel Designed with USB Charger + LED Digital Voltmeter. Material:This USB charger socket is made by ABS environmental protection material which is fire-retardant high and low temperature resistant and anti-corrosive charging faster and more secure. Waterproof and Dust-proof: The power ports and power switch are all covered by caps which make this unit fully competent for outdoor travel in all kinds of weather. Specification: Material:plastics Size:3.6*5.5cm includes: 1 setSocket 1*Fuse Line "